A beautiful wife suffering from a life without night witnesses Nao's husband masturbating alone. She finds out that her husband, who has not held herself for half a year, is not impotent, and she has lost her sexual confidence as well as her libido. One afternoon, when she was rubbing her crotch alone, when she lifted her face, her middle-aged neighbor, Shirai, who appeared at her moving greeting, met her eyes through her window. The two, who were never supposed to meet, will have a violent affair after witnessing this masturbation.
